to the grant of any such patent. Such notice must set forth
the particular grounds of objection, and be in duplicate. A
fee of 10s. is payable thereon.

No. 19546.—7th June, 1906.—ARTHUR COWELL, of Deni-
son Street, Rockhampton, Queensland, Australia, Shearer.
Improvements in sheep-shearing machines.

Claims.—(1.) A fork and tension for use in sheep-shearing
machines. (2.) A slide and set-screw for obtaining and main-
taining the required pressure on the fork spring for use in
shearing-machines, and all substantially as described. I am
making no exclusive claim to lever action, except in connec-
tion with fork described.

(Specification, 3s. 6d.; drawing, ls.)

No. 20121.—2nd October, 1905.—EDWARD MARTIN EDKINS,
of Dannevirke, New Zealand, Engineer. Improved reversing-
gear for the feeding-rollers of saw-benches.*

Claims.—(1.) In means for reversing the feeding-rollers of
saw-benches, the combination with the shaft upon which such
rollers are mounted, of eccentric bearings supporting the
shaft, a friction pulley secured upon the shaft, and friction
pulleys mounted one on each side of such shaft adapted to
be rotated in reverse directions, and either one to be engaged
by the pulley between them by the rotation of the eccentric
bearings in which the shaft of such pulley is carried, substan-
tially as specified. (2.) In means for reversing the feeding-
rollers of saw-benches, the combination with the shaft upon
which such rollers are mounted, rotatable eccentric-bearing
sleeves supporting such shaft, means for rotating such sleeves,
a friction pulley secured upon the shaft, a countershaft upon
each side of the shaft, and a friction pulley upon each counter-
shaft driven in a contrary direction to that upon the other,
the friction pulley upon the roller-shaft being adapted to
engage with either of the pulleys on both sides, by the rota-
tion of the eccentric bearings, substantially as specified.
(3.) The improved reversing-gear for the feeding-rollers of
saw-benches, substantially as described and as illustrated in
the drawings.

(Specification, 4s.; drawing, ls.)

No. 20132.—4th October, 1905.—ARTHUR GEORGE RICH
WILLIAMS, of Petone, Wellington, New Zealand, Engineer.
Improved device for extinguishing oil lamps.*

[NOTE.—The title in this case has been altered from that set out in
the provisional specification.]

Extract from Specification.—I adapt to the wick-tube of
the lamp a sliding shield having a pivoted hood, which, when
the said shield is at the top of the wick-tube, turns over upon
and extinguishes the flame of the wick. The shield is operated
by a lever, which is hinged at one end upon the lamp-frame,
and actuated by a spring which tends to raise it and the shield.
In double-wick lamps the lever is employed between the two
wicks and adapted to operate on two shields, one upon each
wick-tube. A balance weight in the form of a ball is carried
in a shallow cup at the end of the lever, and has weight suffi-
cient to counteract the upward pressure of the spring. The
tilting of the lamp causes the ball to fall from the cup, whereby
the lever is free to rise, carrying with it the shield which ex-
guishes the flame.

[NOTE.—The above extract from the specification is inserted in place
of the claims.]

(Specification, 4s.; drawing, ls.)

No. 20153.—5th October, 1905.—KALL ALFRED OLSEN, of
Port Chalmers, New Zealand, Carpenter. Improvements in
scaffolding.*

Claims.—(1.) A scaffolding-bracket, consisting of a tri-
angular framework, adapted to be supported against a wall by
a stay extending from the frame to the ground, substantially
as described or illustrated in the drawings. (2.) The general
construction, arrangement, and combination of parts composing
my improvements in scaffolding substantially as and for the
purposes set forth.

(Specification, 3s.; drawing, ls.)

No. 20185.—17th October, 1905.—WILLIAM HENRY BOWSER,
of Green Terrace, Swan Hill, Brisbane, Queensland, Australia,
Contractor. A cramp for fastening scaffolding, and for other
analogous purposes.*

Claim.—In a cramp for fastening scaffolding and for other
analogous purposes, a bar such as A, having lugs projecting
on either side, adapted to receive a length of chain, in combina-
tion with a tightening-screw working through a threaded hole
in the upper end of the said bar, substantially as described
and illustrated by drawings.

(Specification, 2s.; drawing, ls.)

No. 20291.—10th November, 1905.—HARRY CLIFF, JONA-
THAN CRAVEN BUNTING, and FRANCIS ERNEST CLIFF, trading
under the name or style of Cliff and Bunting, of 27 Blackwood
Street, North Melbourne, Victoria, Australia, Agricultural-
implement manufacturers. Improvements in or connected
with chaff-cutting machines.*

Claims.—(1.) The improvements in chaff-cutting machines
consisting of a main spindle and a longitudinally removable
knife-wheel spindle, said knife-wheel spindle being in a line
with the main spindle and driven by the same, all as and for
the purposes described, and as illustrated in the drawings.
(2.) The improvements in chaff-cutting machines consisting
of a main spindle and a longitudinally removable knife-wheel
spindle, a knife-wheel upon the main spindle end or the inner
end of a longitudinally removable knife-wheel spindle, all as
and for the purposes described, and as illustrated in the draw-
ings. (3.) Improvements in or connected with chaff-cutting
machines consisting of a main spindle having a flange on the
outer end of the same, a threaded hole in said flange, driving
studs protruding from the flange, in combination with a longi-
tudinally removable knife-wheel spindle, the inner end of
which is threaded and has an intermediate portion, a knife-
wheel, and a shoulder thereon, an operating flange on the outer
end of said knife-wheel spindle having protuberances thereon,
said knife-wheel spindle turning in a bearing, a knife-wheel
boss having supporting lugs and recesses to accommodate
driving studs protruding from the flange of the main spindle,
all as and for the purposes described, and as illustrated in the
drawings.

(Specification, 6s. 6d.; drawing, ls.)

No. 20540.—6th January, 1906.—JOHN DAVID BYWATER,
of Christchurch, New Zealand, Attorney and Manager of
the International Harvester Company of America, of Christ-
church aforesaid. Improvements relating to the mountings
of the discs in disc-ploughs.*

Extract from Specification.—The means devised comprise a
stout casting of special curved or convex form, and the lower
end of which forms a bearing in which the spindle of a disc is
carried so as to be free to rotate therein. This casting is
secured to the side of the plough-beam with its curved side
towards the beam by means of a bolt passing through a ver-
tical slot formed in the casting and through the plough-beam.
This slot will permit of the casting, and the disc carried by it,
being moved up or down and secured in any position, so as
thereby to adjust the vertical angle of the disc to any desired
degree. A packing-block is interposed between the casting and
the plough-beam, and this block is formed transversely of taper-
wedge shape. By adjusting this block the horizontal angle
assumed by the disc in relation to the plough-beam may be
regulated as required. A set screw or stud is provided, pass-
ing down through a flange at the top of the casting and bear-
ing upon a fixed portion of the plough. This screw will serve
to raise or lower the casting, in relation to the beam, when
the bolt fastening it thereto is loosened.

[NOTE.—The above extract from the specification is inserted in place
of the claims.]

(Specification, 5s.; drawing, ls.)

No. 20730.—16th February, 1906.—JOHN VAN NOSTRAND
DORR, of Denver, Colorado, United States of America, In-
ventor. Improvements in the methods of separating materials
of different settling-rates in liquid.

Claim.—The described process of separating ores in pulp or
slimes, consisting in maintaining an overflow bath, progres-
sively deepened in one direction and overflowing at the sur-
face above the deeper side, feeding pulp or slimes to such bath,
intermittently raising the settled ore-particles to and above the
level of the bath at the shallow side thereof, agitating the
pulp or slimes in the bath during the periods while the settled
ore-particles are being raised, alternating such periods of
raising the ore-particles and agitating the pulp or slimes with
periods of rest, and discharging an upwardly directed current
of clear water through such ore-particles as they emerge from
the bath.

(Specification, 4s. 6d.; drawing, ls.)